Colfax Avenue:Ken Foster, founder of the Sula Foundation, which promotes responsible pit bull ownership in New Orleans, and the author of two acclaimed books about abandoned dogs, will discuss and sign his new book I’m a Good Dog: Pit Bulls, America’s Most Beautiful (and Misunderstood) Pet (Penguin). Perhaps more than any other breed, the pit bull has been dogged by negative stereotypes. In truth, pit bulls are innately wonderful family pets, as capable of love and good deeds as any other type of dog. Setting the record straight, Foster sings the praises of pit bulls in I’m a Good Dog, a gorgeously illustrated, tenderly written tribute to this most misunderstood of canines.